<template>
  <div class="app-container">
    <upload-excel-component
      :on-success="handleSuccess"
      :before-upload="beforeUpload"
    />
    <el-table
      :data="tableData"
      border
      highlight-current-row
      style="width: 100%; margin-top: 20px"
    >
      <el-table-column
        v-for="item of tableHeader"
        :key="item"
        :prop="item"
        :label="item"
      />
    </el-table>
  </div>
</template>

<script>
import UploadExcelComponent from '@/components/UploadExcel/index.vue'
import { importEmployee } from '@/api/employees'
import { formatExcelDate } from '@/utils/index'

export default {
  name: 'UploadExcel',
  components: { UploadExcelComponent },
  data() {
    return {
      tableData: [],
      tableHeader: []
    }
  },
  methods: {
    beforeUpload(file) {
      const isLt1M = file.size / 1024 / 1024 < 1

      if (isLt1M) {
        return true
      }

      this.$message({
        message: 'Please do not upload files larger than 1m in size.',
        type: 'warning'
      })
      return false
    },
    // 将本地文件的数据读取出来转换为js数据
    // 将js数据进行格式化
    // 发送请求携带格式化好的数据到后台服务器
    handleSuccess({ results, header }) {
      this.tableData = results
      this.tableHeader = header
      console.log(results, 'results')
      console.log(header, 'header')
      const data = this.dataFormat(results)
      console.log('data', data)
      this.doAdd(data)
    },
    dataFormat(data) {
      // 将data中的数据的key按照改为指定的英文
      // 1. 映射对象，根据映射对象找英文的键
      const mapInfo = {
        入职日期: 'timeOfEntry',
        手机号: 'mobile',
        姓名: 'username',
        转正日期: 'correctionTime',
        工号: 'workNumber',
        部门: 'departmentName',
        聘用形式: 'formOfEmployment'
      }

      // 遍历数组取出一个个的对象,获取到中文的key
      const result = data.map((zhObj) => {
        const enObj = {}
        const zhKeys = Object.keys(zhObj)
        zhKeys.forEach((zhkey) => {
          const enKey = mapInfo[zhkey]
          if (enKey === 'timeOfEntry' || enKey === 'correctionTime') {
            console.log(zhObj[zhkey])

            enObj[enKey] = new Date(formatExcelDate(zhObj[zhkey]))
          } else {
            enObj[enKey] = zhObj[zhkey]
          }
        })
        return enObj
      })
      console.log(result, 'result')
      return result
    },
    // 批量导入数据
    async doAdd(data) {
      try {
        const res = await importEmployee(data)
        console.log('importEmployee', res)
        this.$router.back()
      } catch (error) {
        console.log('error', error)
      }
    }
  }
}
</script>
